The Character Voltage in Supertwisted Nematic Liquid Crystal Display with Weak Anchoring

All Twisted nematic ( TN) and supertwisted nematic ( STN) LCD, including both active and passive matrix, suffer from poor performance at wide viewing angles due to the electro optical properties of the liquid crystal materials.

扭曲向列型（TN）和超扭曲向列型（STN）LCD，包括有源和无源矩阵，都有一个共同的缺点，即视角狭窄；这是液晶材料的电光特性所造成的。

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TVs in the back of cabs could automatically change channel based on a user ’ s likes or dislikes, for example, or drivers could anticipate when and where a passenger will need a ride – even before the customer does.

比如，出租车椅背上的电视可能会自动按照乘客的喜好切换频道，而司机有可能比乘客更早知道在什么时间、什么地点会接到乘客。

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You never know when and where the next risks are going to come.

你永远不知道下次风险什么时候发生，发生在哪里。

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Do you know when and where he was born?

你知道他出生于何时、何地吗？

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It is not known when and where exactly the tradition of sending birthday cards began ．

现在还不知道送生日卡的传统到底是从何时何地开始的。

中考真题- 2019 吉林 阅读判断

When and where did the proposal take place?

什么时候社么地点，提议发生的。

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Let's practice speaking English when and where ( it is) possible.

不论何时何地，只要可能，我们就来练习说英语。

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It is not yet decided when and where the test will be given.

何时何地举行这次考试，还没有定下来。

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But when and where are we going to meet?

那我们在什么时间、什么地点见面？

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And in public education, a new focus on school reform pushes researchers on both sides of the debate to make more efforts to get data that may provide information on when and where prizes work.

而在公共教育领域，对学校改革的新关注促使辩论双方的研究人员做出更多努力，以获得可以提供奖品何时何地起作用的信息的数据。

中考真题- 2017 济南 阅读C

When and where do they come to pick me up?

他们什么时候在哪接我？

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A: When and where shall we meet?

A：我们什么时候在哪里见面?

中考真题- 2019 衡阳 情景对话

Just tell us when and where.

告诉我们时间和地点吧。

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People no longer need to make firm plans about when and where to meet.

人们不需要约定何时何地去约会的严格计划。

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Did he know when and where we were meeting?

他知道我们何时在何地见面吗？

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Sure, why not? When and where do you want to meet?

当然可以，为什么不呢？你想什么时候在哪儿见面？

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Tell students when and where to drop off this form.

告诉学生上交此表的时间和地点。

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When and where can I get on the bus?

何时在哪能坐上车？

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When and where to build the new factory is not decided yet.

在何时何地修建工厂还没有决定。

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When and where to build another bridge is still unknown.

究竟什么时间、什么地点再建一座桥还不清楚。

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